Core i5-1235U vs i5-8250U
Description
The i5-1235U is based on Alder Lake architecture while the i5-8250U is based on Kaby Lake.
Using the multithread performance as a reference, the i5-1235U gets a score of 297.5 k points while the i5-8250U gets 161.3 k points.
Summarizing, the i5-1235U is 1.8 times faster than the i5-8250U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-1235U gets a score of 297.5 k points while the i5-8250U gets 161.3 k points.
Summarizing, the i5-1235U is 1.8 times faster than the i5-8250U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906a4
806ea
Core
Alder Lake-U
Kaby Lake-R
Base frecuency
3.3 GHz
1.6 GHz
Boost frecuency
4.4 GHz
3.4 GHz
Socket
BGA 1700
BGA1356
Cores/Threads
10/12
4/8
TDP
15 W
15 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
4x32+4x32 kB
Cache L2
1x1280+4x2048 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
April 2022
August 2017
Mean monothread perf.
81.64k points
54.31k points
Mean multithread perf.
297.46k points
161.26k points
Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i5-1235U
i5-8250U
Test#1 (Integers)
7.33k
3.32k (x0.45)
Test#2 (FP)
18.27k
13.5k (x0.74)
Test#3 (Generic, ZIP)
12.8k
4.11k (x0.32)
Test#1 (Memory)
13.2k
7.42k (x0.56)
TOTAL
51.61k
28.34k (x0.55)
Multithread
i5-1235U
i5-8250U
Test#1 (Integers)
29.24k
13.97k (x0.48)
Test#2 (FP)
83.32k
50.8k (x0.61)
Test#3 (Generic, ZIP)
54.53k
14.71k (x0.27)
Test#1 (Memory)
4.99k
4.76k (x0.95)
TOTAL
172.07k
84.24k (x0.49)
SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i5-1235U
i5-8250U
Test#1 (Integers)
23.53k
12.41k (x0.53)
Test#2 (FP)
23.51k
18.11k (x0.77)
Test#3 (Generic, ZIP)
14.71k
4.79k (x0.33)
Test#1 (Memory)
13.24k
8.16k (x0.62)
TOTAL
74.99k
43.46k (x0.58)
Multithread
i5-1235U
i5-8250U
Test#1 (Integers)
106.07k
42.48k (x0.4)
Test#2 (FP)
115.88k
60.2k (x0.52)
Test#3 (Generic, ZIP)
60.53k
14.85k (x0.25)
Test#1 (Memory)
5.88k
4.77k (x0.81)
TOTAL
288.36k
122.3k (x0.42)
AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i5-1235U
i5-8250U
Test#1 (Integers)
23.03k
12.59k (x0.55)
Test#2 (FP)
24.11k
18.89k (x0.78)
Test#3 (Generic, ZIP)
13.9k
4.65k (x0.33)
Test#1 (Memory)
12.11k
8.2k (x0.68)
TOTAL
73.15k
44.32k (x0.61)
Multithread
i5-1235U
i5-8250U
Test#1 (Integers)
111.78k
45.91k (x0.41)
Test#2 (FP)
124.18k
69.55k (x0.56)
Test#3 (Generic, ZIP)
59.87k
16.79k (x0.28)
Test#1 (Memory)
5.76k
4.83k (x0.84)
TOTAL
301.58k
137.09k (x0.45)
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i5-1235U
i5-8250U
Test#1 (Integers)
36.73k
22.11k (x0.6)
Test#2 (FP)
22.09k
19.64k (x0.89)
Test#3 (Generic, ZIP)
11.24k
4.54k (x0.4)
Test#1 (Memory)
11.58k
8.03k (x0.69)
TOTAL
81.64k
54.31k (x0.67)
Multithread
i5-1235U
i5-8250U
Test#1 (Integers)
130.18k
74.19k (x0.57)
Test#2 (FP)
110.21k
66.27k (x0.6)
Test#3 (Generic, ZIP)
50.76k
15.97k (x0.31)
Test#1 (Memory)
6.31k
4.83k (x0.77)
TOTAL
297.46k
161.26k (x0.54)
Performance/W
i5-1235U
i5-8250U
Test#1 (Integers)
8679 points/W
4946 points/W
Test#2 (FP)
7348 points/W
4418 points/W
Test#3 (Generic, ZIP)
3384 points/W
1065 points/W
Test#1 (Memory)
421 points/W
322 points/W
TOTAL
19831 points/W
10751 points/W
Performance/GHz
i5-1235U
i5-8250U
Test#1 (Integers)
8349 points/GHz
6503 points/GHz
Test#2 (FP)
5020 points/GHz
5777 points/GHz
Test#3 (Generic, ZIP)
2555 points/GHz
1334 points/GHz
Test#1 (Memory)
2631 points/GHz
2361 points/GHz
TOTAL
18555 points/GHz
15975 points/GHz
Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4